Apparatus for the distillation of fatty acids, glycerin, and the like



y 14, 1929- w. GENSECKE 1,713,431

APPARATUS FOR THE DISTILLATION OF.FATTY ACIDS, GLYCERIN AND THE LIKEFiled Nov. 12, 1924 Wan mantel:

Patented May 14, 1929.

UNITED STATES PATENT OFFICE.

wmHELMoENsEcxE, OFBAD nonnune, GERMANY.

APPARATUS FOR THE DISTILLATIOK OF FATTY ACIDS, GLYCERIN, AND THE LIKE.

Application filed November 12, 1924, Serial No. 749,565, and in GermanyNovember 28, 1928.

Fatty acids, glycerin and similar materials are usually distilled bymeans of superheated steam (steam distillation) and it is known that insuch processes the employment of subatmospheric pressure isadvantageous. It is therefore customary to connect thedistilling vesselthrough a surface condenser for the fatty acid, glycerin or the like,and a water cooled condenser fo the steam with a gas pump for creating ad maintaining a partial vacuum in the distilling apparatus. The extentto which the pressure inthe distilling vessel in this arrangement0f-apparatus may be reduced and maintained is thus limited to the vaporpressure which of course depends upon thetemperature of the water in thesteamcondenser.

According to the present invention the distillation is carried out undera pressure which is less than the vapor pressure of the water in thesteam condenser. By operating under a lower pressure'the distilling temerature is correspondingly reduced, the qua ity of the disti proved, andsteam and heat are saved. These results are accomplished by placing agas pump between the distilling vessel and the steam condenser with itssuction side communicating with the distilling vessel and its pressureside communicating with the condenser. The gas pump is preferablylocated between the surface condenser and the steam condenser. A pump ofthe steam jet type is particula rl well adapted for this purpose becauseit has no moving parts and is capable of handling a large volume of gaswithout mechanical difficulties. One form of apparatus suitable forcarrying out the process of my invention is illustrated in theaccompanying drawing.

Referring to the drawing, ads the distilling vessel, 6 a pipe for theintroduction of superheated steam into the material to be distilled, c asurface condenser which serves to condense the fatty acids, glycerin orthe llation product is imlike, and d a The liquid gases in the watercooled steam condenser.

separated from the distillation condenser c collects in t he trap 12'and is discharged through the vessel f. Between the condenser c and thecondenser d is the pump 9 of the well known or in the pipe Z. 9' as wellas steam jet jector type supplied with steam through The steam employedi n the pump the steam passing therethrough from the condenser c arecondensed in the The condenser 03 is of the jet or condenser d.

spray type h and a hydros such as air is through the I claim 1.Apparatus f0 fatty acids,

and thelike, tilling vessel, and a steam having its su aving a. watersupply pi e h tatic leg m. Uncondense gas removed from the condenser dliquid tra means of an air pump p i and pipe I: by not shown).

under high g a distilling vessel, a surr the fatty acids, glycerincommunicating with said disa water cooled steam condenser operated inction sid in communication with said surface condenser for the fattyacids, glycerin and the l ike, and its pres- Gil jector compressor,

sure side in communication with said steam condenser.

2. Apparatus for the fatty-acids, glycerin an vacuum, comprising adistilling vessel face condenser for the fatty .communicatln and thelike,

steam distillation of the like under high a suracids, giycerin with saiddistilling vessel, a water coole steam condenser, a steam operatedlIlJCCtOI compressor,

having its suction si de in communication with said surface condenserfor the fatty acids, glycerin and the like, and its pressure denser, anda condenser and t condensate from In testimon liu . side incommunication with said steam conid trap between the surface e injectorfor collecting the the surface condenser.

y whereofLI afiixm si ature.

WILHE M GE SE KE.

